Unlock Revengeance mode
On the title screen, enter the Konami code: [Up], [Up], [Down], [Down], [Left], [Right], [Left], [Right], [Circle], [X]. Revengeance mode will be made available as a difficulty setting.

DL-VR Master (Silver) - Complete every DL-VR Mission.
Hero of the Metaverse (Gold) - Set the highest score on every DL-VR Mission.

Unlimited Item Stocking
If you collect all items from boxes in an area, press (Back) and enter (Customization). Once you exit the customization screen, all item boxes will be reset, allowing you to fully stock up on items. Repeat as many times you wish.

Unlock Unlimited BP
On File R-01 you will come across a section with a Ferris wheel, as you walk up to the Ferris wheel for the 1st time, directly to the left, in the corner of the map, will be a blue box you can break open with blade mode. It has 5,000 BP. Once you break it open & get the 5,000 BP. Call Courtney, save the game, then go restart. You'll end up in front of the Ferris wheel & able to run over to the BP stash & collect another 5,000 BP. You can repeat this process however many times you want.